Time of flight of projectile motion

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Homework Help Overview

The discussion revolves around the time of flight in projectile motion, specifically questioning why the time taken for vertical motion is the same as that for horizontal motion. Participants express confusion regarding the terminology and concepts involved in this aspect of projectile motion.

Discussion Character

  • Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants seek clarification on what is meant by the "time of vertical motion and horizontal motion" being the same. There are attempts to differentiate between the time taken to reach maximum height and the total time of flight. Some participants question the use of terms like "s" for distance and its relation to time.

Discussion Status

The discussion is ongoing, with participants exploring different interpretations of the time of flight concept. Some guidance has been offered regarding the relationship between vertical and horizontal motion, but no consensus has been reached on the terminology or underlying principles.

Contextual Notes

Participants are grappling with the definitions and implications of time in the context of projectile motion, particularly in relation to horizontal and vertical components. There is a noted confusion regarding the use of symbols and units in the discussion.

goldfish9776
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Homework Statement


Why the time of vertical motion and horizontal motion of the projectile are the same ? I couldn't understand it. Could someone explain it ?

Homework Equations

The Attempt at a Solution

 
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goldfish9776 said:

Homework Statement


Why the time of vertical motion and horizontal motion of the projectile are the same ? I couldn't understand it. Could someone explain it ?

Homework Equations

The Attempt at a Solution


What do you mean by the time is the same?
 
I agree. You need to tell us what you mean by "time of vertical motion and horizontal motion" being the same. If you fire a projectile at an angle to the horizontal, the time that the projectile takes to reach its maximum height is (neglecting air resistance) the same at it takes to go back down again. That's simply because the vertical acceleration is the same in both directions. The time the projectile takes to "hit the ground" again is NOT the same as the time it takes to reach its maximum height but is the same as the total time to go up and back down. That just an obvious result of what "hit the ground again" means!
 
here's what i mean . Part ii
I couldn't understand why the time of horizontal motion is same as the time
 

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goldfish9776 said:
here's what i mean . Part ii
I couldn't understand why the time of horizontal motion is same as the time
because they are using s as distance, its not the same as units of time s is seconds.
 
Clearly there can only be one time of flight.

It can't take less or more time to travel horizontally than it did vertically.
 
Last edited:

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